{"api_version":"1","generated_at":"2026-07-23T07:56:34+00:00","cve":"CVE-2016-8646","urls":{"html":"https://cve.report/CVE-2016-8646","api":"https://cve.report/api/cve/CVE-2016-8646.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-8646","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-8646"},"summary":{"title":"CVE-2016-8646","description":"The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.","state":"PUBLISHED","assigner":"redhat","published_at":"2016-11-28 03:59:08","updated_at":"2026-05-06 22:30:45"},"problem_types":["CWE-476","n/a"],"metrics":[{"version":"3.0","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"4.9","severity":"","vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","data":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:C","baseScore":4.9,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"}}],"references":[{"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6","name":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes"],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:1298","name":"https://access.redhat.com/errata/RHSA-2017:1298","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.openwall.com/lists/oss-security/2016/11/15/2","name":"http://www.openwall.com/lists/oss-security/2016/11/15/2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"title":"oss-security - CVE-2016-8646: linux kernel - oops in shash_async_export()","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:1308","name":"https://access.redhat.com/errata/RHSA-2017:1308","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1388821","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1388821","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking"],"title":"Bug 1388821 – CVE-2016-8646 kernel: Oops in shash_async_export()","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45","name":"https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Third Party Advisory"],"title":"crypto: algif_hash - Only export and import on sockets with data · torvalds/linux@4afa5f9 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45","name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/94309","name":"http://www.securityfocus.com/bid/94309","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Linux Kernel 'crypto/algif_hash.c' Local Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2017:1297","name":"https://access.redhat.com/errata/RHSA-2017:1297","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/security/cve/CVE-2016-8646","name":"MISC:https://access.redhat.com/security/cve/CVE-2016-8646","refsource":"MITRE","tags":[],"title":"CVE-2016-8646 - Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-8646","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-8646","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2016","cve_id":"8646","vulnerable":"1","versionEndIncluding":"4.3.5","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2016","cve_id":"8646","cve":"CVE-2016-8646","epss":"0.000340000","percentile":"0.100130000","score_date":"2026-05-10","updated_at":"2026-05-11 00:14:43"},"legacy_qids":[{"cve":"CVE-2016-8646","qid":"378249","title":"Virtuozzo Linux Security Update for kernel-tools-libs (VZLSA-2017:1308)"}]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T02:27:41.245Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1388821"},{"name":"RHSA-2017:1308","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2017:1308"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45"},{"name":"94309","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/94309"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45"},{"name":"RHSA-2017:1298","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2017:1298"},{"name":"[oss-security] 20161115 CVE-2016-8646: linux kernel - oops in shash_async_export()","tags":["mailing-list","x_refsource_MLIST","x_transferred"],"url":"http://www.openwall.com/lists/oss-security/2016/11/15/2"},{"name":"RHSA-2017:1297","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/errata/RHSA-2017:1297"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2016-02-19T00:00:00.000Z","descriptions":[{"lang":"en","value":"The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2018-01-04T19:57:01.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1388821"},{"name":"RHSA-2017:1308","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2017:1308"},{"tags":["x_refsource_CONFIRM"],"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45"},{"name":"94309","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/94309"},{"tags":["x_refsource_CONFIRM"],"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6"},{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45"},{"name":"RHSA-2017:1298","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2017:1298"},{"name":"[oss-security] 20161115 CVE-2016-8646: linux kernel - oops in shash_async_export()","tags":["mailing-list","x_refsource_MLIST"],"url":"http://www.openwall.com/lists/oss-security/2016/11/15/2"},{"name":"RHSA-2017:1297","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2017:1297"}]}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2016-8646","datePublished":"2016-11-28T03:01:00.000Z","dateReserved":"2016-10-12T00:00:00.000Z","dateUpdated":"2024-08-06T02:27:41.245Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2016-11-28 03:59:08","lastModifiedDate":"2026-05-06 22:30:45","problem_types":["CWE-476","n/a"],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:C","baseScore":4.9,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndIncluding":"4.3.5","matchCriteriaId":"E5BF9CD8-D36A-4452-9E07-9728C7CCD2AB"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"8646","Ordinal":"1","Title":"CVE-2016-8646","CVE":"CVE-2016-8646","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"8646","Ordinal":"1","NoteData":"The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.","Type":"Description","Title":"CVE-2016-8646"},{"CveYear":"2016","CveId":"8646","Ordinal":"2","NoteData":"2016-11-27","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"8646","Ordinal":"3","NoteData":"2018-01-04","Type":"Other","Title":"Modified"}]}}}